Storage battery.



, and Improved Storage Battery, of which vention; Fig. 2 is a Fig. '3 isa transverse section substantially closure, The battery plates of theseveral To all whom it may concern:

-ments in storage batteries,

, the battery may readily be ascertained withbut-ton or switch wherebythe meter may be UNITED STATES Parana onricn PAUL MAX MABKO, OF NEWYORK, N. Y.

s'ronaon BATTERY.

Specification of Letters Patent.

Patented Jan. 4, 1910.

Application filed June 10, 1909. Serial No. 591,514.

Be it known that I, PAUL MAX MARKO, a subject of the Emperor of Germany,and a resident of the city of New York, borough of Brooklyn, in thecounty of Kings and State of New York, have invented a new the followingis a full, clear, and exact de scription. p

This invention relates to certain improveand more particularlyto meanswhereby the strength of out the aid of outside instruments, attachmentsor connections.

In my improved storage battery the cell or cells are supported in acasing or box, through the walls of which extend the terminals orbinding posts from the battery plates. In the wall of this box or casingI insert an electric meter and provide a push thrown into or out ofcircuit at will. The face of the meter is below or substantially flushwith the wall of the casin so that the meter is protected against acciental injury, and the inner side of the meter and its connections areprotected against injury by the acids or gases employed 1n or escapingfrom the cells. The electric meter is normally only the. capacity of thebattery.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all, the figures, and in Wll1Cl1-" Figure l is aperspective view of a battery constructed in accordance with myinvertical section along a broken line through the terminals, meter andpush button, but on a larger scale; and

on the line 33 of Fig. 1, but on a smaller scale, y

Inthe specific form illustrated I employ three battery cells 10, 11 and12, arranged side by side and inclosed in a box or casin 13. The top ofthe box or casing is divided into two sections 14 and 15, the former ofwhich is permanently secured in place and the latter of whichconstitutes-a movable cells are provided with suitable terminals, onlytwo of which extend through the top of the casing. As shown, 16 of thecell 10 extends adjacent one corner, while a positive terminal 17 of thecell 12 extends through the top at the opposite corner. The positivepole of the cell 10 may be connected to the negative pole of the cell11, and the positive pole of the cell 11 may be connected to thenegative pole of the cell 12, so that the cells may be in series, butthe nature of these connections constitutes no portion of my inventionand said connections are not illustrated. The terminals 16 and 17, attheir outer ends, constitute binding posts and are provided with thumbnuts 18 and 19, by means of which wines may be connected to the battery.Each cell is provided with a filling and ventilating plu 20 below themovable cover section 15, an the latter adjacent its ends, may beprovided with grooves 21, to permit the escape of any gas generated inthe cells. The features so far referred to in the detail description ofthe specific form shown, constitute no portion of my present inventionand may be varied at through the top 14,

WVithin the stationary cover section 14, I provide an o ening 22 ofsubstantially the size of a sma electric meter 23. This electric meteris preferably a voltmeter and may be secured in place in any suitablemanner, as, for instance, by threaded engagement with a collar 24. tially the same depth as the top 14 and isinstarted so that its upper surfacelies in approximately the same plane with the upper surface of said top.Adjacent the meter and also extending through an opening in the top 14,is a circuitcloser, .preferably'in the form of an insulated plug 25carrying a push button 26. A wire 27 extends from the terminal 16 to oneterminal of the meter, 21 wire 28 extends from the other terminal of themeter to one terminal of the circuit closer, and a wire 29 extends fromthe other terminal of the circuit closer to the battery terminal 17. Thepush button 26' is normally held in raised position,

so that no current can flow through the meter, but whenever it isdesired to ascertain the strength of the battery, it is only necessaryto press down on the push button and a short circuit will be formedthrough the voltmeter and from the terminal 16 to the ventilating Themeter is of substan a negative terminal 14:, and may terminate adjacentthe ventilatterminal 17. The voltage of the battery will be immediatelyindicated by the needle of the meter. The meter is preferably calibratedin accordance with the size of the battery and the urposes for which itis to be employed. li the battery is to be used for generating currentfor the spark plug of an internal combustion engine, the dial might showas its lowest calibration, the lowest voltage which will give thedesired spark, and as its highest cali iration, the strength of thebattery when the latter is fully charged.

The wires 27, 28 and 29, as well as the terminals to the meter and theconnections to the circuit closer, are all inside of the casing andconcealed from view and protected from accidental injury. To protectthem from in jury by gases generated in the cells or from contact withacid employed in the cells, the space between the tops of the cells andthe under surface of the top section 14, is preferably filled with amass 30 of wax or other similar or suitable material. This wax COIII'pletely covers and insulates all of the connections from the terminal 16to the terminal 17, as well as the inner surfaces of the circuit closerand meter. Furthermore, it prevents the connections from accidentallyloosening and aids in holding the cells in place and against rattling.This mass of wax or other material may completely fill the space beneaththe stationary top section I i l I l 1 ing plugsQO, which are beneaththe movable cover section 15.

Having thus described my invention, 1 claim as new and desire to secureby Letters 1 Patent:

1. In combination, a storage battery cell having positive and negativeterminals, :1

casing inclosing said cell and having apertures through one wallthereof, through which said terminals extend, said wall being providedwith a second aperture, a collar secured within said aperture, avoltmeter threaded into said collar and having its outer surfacesubstantially flush with the outer surface of the wall of the casing andvisible from the exterior of said-casing, and shuntconnections withinsaid casing beneath said wall and connecting the terminals of saidvoltmeter with said battery ter minals, one of said connectionsincluding a push button, by means of which the shunt may be closed andthe strength of the battery ascertained from an inspection of thevoltmeter.

2. In combination, a battery cell having positive and negativeterminals, a casing inclosing said cell and having a cover formed of astationary section and a movable section, the terminals from said cellextending through said stationary section, and said cell having afilling-opening beneath said movable section, a voltmeter and a normallyopen circuit closer inserted within openings in said stationary section,connections between said voltmeter, circuit closer, and terminals andwithin said casing, whereby the voltmeter may be thrown into circuit,and a filling of insulating material between said cell and saidstationary cover section for insulating and protecting said connections.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Wll'IIQSSGS,

- PAUL MAX MARKO. Witnesses:

CLAIR \V. FAIRBANK, JOHN P. I)AVIS.

